Diagnosis of obstructive sleep apnea is done by the patient undertaking an overnight sleep study in a sleep lab. The patient is fitted with a series of sensors on their head, chest, belly, jaws and legs. These record the brain activity, for measuring the stages of sleep, the pattern of breathing a the chest expands and contacts, the belly, to measure the diaphragm, the jaws , to record movements for sleep staging as well a to record if sleep-related bruxism is present, and on the legs, to screen for restless leg syndrome.
For UARS, a special nasal cannula sensor is used as well. This measures the characteristic changes in pressure of the upper airway seen in UARS.
Once the data is collected, your sleep specialist reviews the night’s recordings and, from this, can diagnose if you have a sleep disorder or disorders, and then recommend the best course of treatment for you.